split-bounce-hit how long would it take to train

What is a reasonable expectation of the time it'd take to train a motivated (though not highly) 13 years old (about 3.5 strokes wise) to automatically execute the split-bounce-hit habit and always stay on his toes? Assuming training time is 3 days per week, 2 hours per session. Many thanks!

It also depends on if the kids teachable. Some kids are stubborn and will never listen to you. You have to try to prove them wth evidence that this works to get them to listen. (make sure you tell them they won't get immediate results)